#include <iostream>
#include <string>
#include <vector>
using namespace std;

string fact(char True_answer) {
  switch (True_answer) {
  case 'A':
    return "Ops! Wrong answer";
    break;
  case 'B':
    return "Ops! Wrong answer";
    break;
  case 'C':
    return "Ops! Wrong answer";
    break;
  case 'D':
    return "这都被你知道了！";
    break;
  }
  return "";
}
int main() {
  cout << "让你猜一猜我的QQ是多少呀~" << endl;
  cout << "A:123456789" << endl;
  cout << "B:456789123" << endl;
  cout << "C:987456123" << endl;
  cout << "D:456987189" << endl;
  cout << "正确答案是？：";
  char Given_answer;
  cin >> Given_answer;
  string Out_put = fact(Given_answer); //函数的调用部分
  cout << Out_put << endl;
  return 0;
}